Docs: Visual styles have odd margins

[dcramer]

Large blank space on the left side. Maybe we want this but it feels odd. I'd expect the nav to be attached to the center column.

[dcramer]

Astro docs have this problem but they at least make it 3 real columns:

[Shubhdeep12]

It looks like Astro docs are now with the same layout 😅

[BYK]

This seems to be fixed. Probably with the Astro upgrade some time ago.